Abstract: A batch or continuous process for preparing silylated polymers having low color and color stability comprising silylating a prepolymer having reactive functional groups with a silylating agent and optionally quenching the silylated polymer, where a stabilizer package containing at least one phosphite stabilizing agent is used.
Type:
Grant
Filed:
August 11, 2015
Date of Patent:
November 27, 2018
Assignee:
Momentive Performance Materials Inc.
Inventors:
John Banevicius, Misty Huang, Brendan O'Keefe, Vikram Kumar, Bruce Barbera
Abstract: The present invention provides for a household, agricultural, coating or personal care product composition containing the crosslinked reaction product of a network composition the reaction product of: (i) at least one anionic polymerizable ethylenically unsaturated monomer (I) selected from the group consisting of [CH2?C(R3)C(O)OXa(C2H4O)b(C3H6O)c(C4H8O)d]pP(O)(OY)q(OZ)r and CH2?C(R3)C(O)OXa?(C2H4O)b?(C3H6O)c?(C4H8O)d?—SO3—Y) where R3=H or alkyl of 1 to about 6 carbon atoms; X=alkyl, aryl, or alkaryl diradical connecting group of 0 to about 9 carbon atoms; a, a?, b, b?, c, c?, d and d? are 0 to about 100; q is 0 to about 2; r is 0 to about 2; p is 1 to about 3 subject to the limitation that p+q+r=3; and Y and Z is H, or metal ion; and (ii) one or more additional monomers (II) selected from the group consisting of acrylic acid/acrylate, methacrylic acid/methacrylate, acrylamides, vinyl acetate and styrene, which are copolymerizable with (I); and (iii) a cross-linking agent (III), capable of copolymerizin
Type:
Grant
Filed:
December 22, 2010
Date of Patent:
November 20, 2018
Assignee:
Momentive Performance Materials Inc.
Inventors:
Ning Lu, Sigfredo Gonzalez, Ernie Silvestre, Geng Wang
Abstract: There is provided herein a composition comprising (a) a mercapto-functional silicon compound having the general Formula (I): and a reactive resin containing at least one epoxy and/or (meth)acrylate group. There is also provided a silylated resin resulting from the reaction product of mercapto-functional silicon compound (a) and reactive resin contain at least one epoxy and/or (meth)acrylate groups.
Type:
Grant
Filed:
April 11, 2016
Date of Patent:
October 23, 2018
Assignee:
Momentive Performance Materials Inc.
Inventors:
Constantine Kondos, Vikram Kumar, Martin Wusik
Abstract: A spinal implant is provided that includes a body extending in direction at least substantially along a body axis, between a first end portion and a second end portion. The spinal implant also includes a first bearing surface disposed relative to the first end portion, and defining a first relief pattern that is configured to inhibit movement of the spinal implant relative to one or more vertebrae in at least substantially all directions. A method for manufacturing the spinal implant involves use of selective laser sintering.
Abstract: Conversion and passivation coatings and methods for metal surfaces such as steel and aluminum are disclosed. The coating compositions comprise an aqueous sol of cerium oxide and/or silica particles and a ureido silane compound. The methods of the invention comprise contacting the requisite metal surface with the coating composition.
Type:
Grant
Filed:
November 30, 2005
Date of Patent:
August 7, 2018
Assignee:
Momentive Performance Materials Inc.
Inventors:
Lingyun He, Donald W. Whisenhunt, Jr., Jeffrey I. Melzer, Andrea Keys Eodice, Bret Chisholm, Christopher M. Carter, Shiu-Chin H Su, Kendall L. Guyer, Matthew M. Hunter
Abstract: Provided is a one part, dual curable composition comprising (A) a first acrylic functional polyorganosiloxane with at least one moisture curable functional group, (B) a second acrylic functional polyorganosiloxane, which may optionally contain a moisture curable functional group, and (C) a third functional polyorganosiloxane, which optionally contains an acrylic and moisture curable functional group. The combination of (A), (B), and (C) provides a composition that is both moisture curable and radiation curable and provides a material that is fast curing via the dual cure functionality and provides a cured material exhibiting a relatively low modulus, good adhesion, and optical clarity.
Abstract: There is provided herein a curable polysiloxane composition comprising a reactive polysiloxane having the general structural formula (I): as described herein. There is provided a method of making the polysiloxane. In addition, there is provided a curable composition including the polysiloxane.
Abstract: A process for preparing a rubber composition comprises: (a) forming a mixture of: (i) at least one thiocarboxyl-functional hydrolyzable silane, (ii) at least one rubber containing carbon-carbon double bonds, (iii) at least one silane-reactive filler, (iv) at least one activating agent, and (v) water; (b) mixing the composition formed in step (a) under reactive-mechanical-working conditions and in the absence of vulcanizing agent(s); (c) adding at least one vulcanizing agent (vi) to the composition of step (b); (d) mixing the composition of step (c) under non-reactive-mechanical-working conditions; and, (e) optionally, curing the rubber composition of step (d).
Abstract: The invention is directed to personal care compositions comprising an acid functionality bearing silicone neutralized in situ with at least one aminosilane or a partially hydrolyzed aminosilane. The invention provides better stability to formulation in addition to improved delivery of hydrophilic actives from the formulation.
Type:
Grant
Filed:
February 8, 2016
Date of Patent:
June 5, 2018
Assignee:
Momentive Performance Materials Inc.
Inventors:
Monjit Phukan, Anubhav Saxena, Vasuki Kaushik, Richard Anthony Presti
Abstract: The present invention relates to chlorine resistant crosslinkable silane-containing polyolefin compositions and stabilizer masterbatch compositions, their preparation, and articles made therefrom. These crosslinkable silane-containing compositions contain a mixture of antioxidants, light absorbers and stabilizers that provide resistance to the levels of chlorine used in potable water and to light, thereby extending the useful life of said articles made therefrom, such as potable water pipes and valves, bottles, tanks, and the like.
Type:
Grant
Filed:
January 15, 2015
Date of Patent:
June 5, 2018
Assignee:
Momentive Performance Materials Inc.
Inventors:
Christine Lacroix, Philbert E. Ramdatt, Eric Pohl
Abstract: There is provided herein a polyalkylene-oxide-free surfactant composition comprising an ester-modified organosilicon having the general formula (I) AOaR4b(BOcR11d)e(C)fDg. There is also provided methods for making the ester-modified organosilicon (I) and agricultural, coating, personal care and home care applications containing the polyalkylene-oxide-free surfactant composition.
Type:
Grant
Filed:
April 7, 2016
Date of Patent:
June 5, 2018
Assignee:
Momentive Performance Materials Inc.
Inventors:
George A. Policello, Narayan Mukherjee, Roland Wagner, Mark D. Leatherman
Abstract: The invention is directed to a conversion coating composition for coating a metal surface including a water soluble dye, at least one metal compound selected from the group consisting of a zirconium-containing compound, titanium-containing compound and silicon-containing compound; and water, wherein the provides for qualitative characterization of the conversion coating uniformity and thickness by the naked human eye or visible light detecting device; and, a method for coating the metal surfaces using the conversion coating composition.
Abstract: A polymer material comprising a constraint bicyclic bridged structure such as bicyclo(2,2,1) ring system, most preferably a norbornyl group, pendant to a siloxane backbone. The bridged bicyclic-containing materials can exhibit good refractive index, transparency, gas permeability, and/or other properties making them suitable for use in a variety of applications.
Abstract: There is described a polysiloxane having the structure: wherein R1, R2, and R3 are independently a hydrocarbon radical, an unsaturated radical, an alkoxy radical, an aryl radical or an alkenyloxy radical, R4 is independently a direct bond or hydrocarbon radical optionally substituted with oxygen and nitrogen, R5 is independently a hydrogen, a halogen, an aliphatic group having from 1 to 6 carbon atoms, an aromatic group having 6 to 8 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or an aryloxy group, R6 is independently a hydroxyl group, an amine group, an acid chloride group, or a sulfonyl halide group, x is from 1 to 300; y is from 0 to 50; and z is from 0 to 50. The polysiloxane is used to make various copolymers and polymer blends. A variety of articles can be made using the polysiloxane described as a polymer blend or copolymer.
Type:
Grant
Filed:
November 18, 2016
Date of Patent:
May 1, 2018
Assignee:
Momentive Performance Materials, Inc.
Inventors:
Narayana Padmanabha Iyer, Indumathi Ramakrishnan, Anuj Mittal, Roy Rojas-Wahl, Samim Alam
Abstract: Disclosed herein is a composition comprising amino-functional polysiloxanes of high purity and their preparation. Also disclosed herein is an aminoalkyl-functional polysiloxane, a process for purifying this aminoalkyl-functional polysiloxane, a process for preparing the composition, a use of the composition, a polyorganosiloxane-polyorgano block copolymer, a process for the preparation of a polyorganosiloxane-polyorgano block copolymer and a shaped, formed and/or extruded shaped article.
Type:
Grant
Filed:
December 22, 2015
Date of Patent:
April 24, 2018
Assignee:
Momentive Performance Materials Inc.
Inventors:
John M. Huggins, Hurbertus Eversheim, Gunnar Hoffmüller
Abstract: A linear silicone polymer suitable for use in producing homopolymers, copolymers, polymerized emulsions, latex compositions, and hydrogel polymer films. In one aspect, a hydrophilic silicone monomer is of the Formula 1: WAmBnW??(1) Where, A is a divalent block comprising a silicone-containing pendant group. In one embodiment, the silicone-containing pendant group comprises polyalkylene oxide groups. The structure of the polymer can be controlled and tuned to provide a material with excellent wettability and oxygen permeability. The polymers are suitable for use in a variety of applications including in providing a film for forming contact lenses.
Abstract: Moisture-curable resin compositions comprising (a) a moisture-curable polymer having at least one hydrolysable silyl group; (b) a reactive modifier; (c) a catalyst for catalyzing the reaction between the moisture-curable polymer (a) and reactive modifier (b) under curing conditions; and cured compositions produced by contacting such resin compositions with water are disclosed. The moisture-curable resin composition is useful in the production of adhesives, including hot melt adhesives, primers, sealants, and coatings.
Type:
Grant
Filed:
September 10, 2012
Date of Patent:
April 3, 2018
Assignee:
Momentive Performance Materials Inc.
Inventors:
Misty Huang, Richard W. Cruse, Benjamin Falk, Eric Pohl, Shiu-Chin Su, Jeries Nesheiwat, Philbert Ramdatt, Thomas Fay-Oy Lim, Vikram Kumar
Abstract: There is provided herein a composition which contains hydride-functionalized siloxane or silane, a hydroxyl-containing compound that does not contain silicon, and a catalytically-effective amount of super acid or super base catalyst selected from the group consisting of a triaza-containing compound which contains only carbon, nitrogen and hydrogen atoms, an atrane compound, a linear or branched compound containing a sulfonyl group and a fluoro group, and combinations thereof. There is also provided a process of making such a composition.
Type:
Grant
Filed:
June 1, 2016
Date of Patent:
February 27, 2018
Assignee:
Momentive Performance Materials Inc.
Inventors:
Karthikeyan Sivasubramanian, Vivek P. Khare